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an erection that will not go away (priapism). If you have an erection that lasts more than 4 hours, get medical help right away.If it is not treated right away, priapism can permanently damage your penis.

sudden vision loss in one or both eyes. Sudden vision loss in one or both eyes can be a sign of a serious eye problem callednon-arteritic anterior ischemic optic neuropathy (NAION). Stop taking VIAGRA and call your healthcare provider right away if youhave any sudden vision loss.

sudden hearing decrease or hearing loss. Some people may also have ringing in their ears (tinnitus) or dizziness. If you havethese symptoms, stop taking VIAGRA and contact a doctor right away.

Before you take VIAGRA, tell your healthcare provider if you:

have or have had heart problems such as a heart attack,irregular heartbeat, angina, chest pain, narrowing of the aortic valve, or heart failure

have had heart surgery within the last 6 months

have had a stroke

have low blood pressure, or high blood pressure thatis not controlled

have a deformed penis shape

have had an erection that lasted for more than 4 hours

have problems with your blood cells such as sickle cellanemia, multiple myeloma, or leukemia

have retinitis pigmentosa, a rare genetic (runs in families)eye disease

have ever had severe vision loss, including an eye problemcalled NAION

have bleeding problems

have or have had stomach ulcers

have liver problems

have kidney problems or are having kidney dialysis

have any other medical conditions

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins,and herbal supplements.

VIAGRA may affect the way other medicines work, and other medicines may affect the way VIAGRA works, causing side effects.Especially tell your healthcare provider if you take any of the following:

medicines called nitrates

medicines called alpha-blockers such as Hytrin (terazosinHCl), Flomax (tamsulosin HCl), Cardura (doxazosinmesylate), Minipress (prazosin HCl), Uroxatral (alfuzosin HCl),Jalyn (dutasteride and tamsulosin HCl), or Rapaflo (silodosin).Alpha-blockers are sometimes prescribed for prostateproblems or high blood pressure. In some patients, the useof VIAGRA with alpha-blockers can lead to a drop in blood pressure or to fainting

some types of oral antifungal medicines, such asketoconazole (Nizoral) and itraconazole (Sporanox)

some types of antibiotics, such as clarithromycin (Biaxin),telithromycin (Ketek), or erythromycin

other medicines that treat high blood pressure

other medicines or treatments for ED

VIAGRA contains sildenafil, which is the same medicine foundin another drug called REVATIO. REVATIO is used to treat arare disease called pulmonary arterial hypertension (PAH).VIAGRA should not be used with REVATIO or with other PAHtreatments containing sildenafil or any other PDE5 inhibitors(such as Adcirca [tadalafil])

VIAGRA does not protect against sexually transmitted diseases, including HIV.

The most common side effects of VIAGRA: headache; flushing; upset stomach; abnormal vision, such as changes in color vision(such as having a blue color tinge) and blurred vision; stuffy or runny nose; back pain; muscle pain; nausea; dizziness; rash.

Patients should always ask their doctors for medical advice about adverse events.You may report an adverse event related to Pfizer products by calling 1-800-438-1985 (U.S. only). If you prefer, you may contact theU.S. Food and Drug Administration (FDA) directly. The FDA has established a reporting service known as MedWatch where healthcare professionals and consumers can report serious problems they suspect may be associated with the drugs and medical devices they prescribe, dispense, or use. Visit MedWatch or call 1-800-FDA-1088.

Call 1-888-4-VIAGRA (1-888-484-2472), 9 AM to 7 PM Eastern Time, Monday through Friday for more information.

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The blue diamond tablet shape is a registered trademark of Pfizer Inc.

VIAGRA (sildenafil citrate), REVATIO (sildenafil), Cardura (doxazosin mesylate), and Minipress (prazosin HCl) are registered trademarks of Pfizer Inc. Other brands listed are trademarks of their respective owners and are not affiliated with nor endorse Pfizer Inc.

The health information contained herein is provided for educational purposes only and is not intended to replace discussions with a healthcare provider. All decisions regarding patient care must be made with a healthcare provider, considering the unique characteristics of the patient.

The product information provided in this site is intended for residents of the United States. The products discussed herein may have different product labeling in different countries.

June 2015| VGU741104-01

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